In 2005, GM's global facilities emitted 11.68 million metric tons of CO2 (see graph), a 15.5 percent decrease compared to 2000 - surpassing the global target of an 8 percent reduction from 2000-2005. CO2 emissions are calculated from fuel and electricity use at each facility, which are the major sources of greenhouse gas emissions from operations.
GM’s new global facility CO2 reduction target is an additional 8 percent from 2005-2010.